The Hydrocracking of a Heavy Anthracene Oil over Molten Salt Catalysts

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Abstract
The hydrocracking of a heavy anthracene oil over molten salt catalysts (zinc chloride or a binary mixture of zinc chloride and another metal chloride) at 400 °C for 3 h in a batch autoclave system was carried out, and the products were mainly identified by means of GC-MS. The effects of the hydrogen pressure (60 or 100 kg/cm2), the quantity of the catalyst, and the addition of metal chloride (potassium chloride or copper(I) chloride) to zinc chloride on the product distribution were examined and discussed. Based on the detailed product analysis, it was found that cata-condensed polycyclic aromatic compounds were hydrocracked more efficiently than peri-condensed polycyclic aromatic compounds. The CuCl/ZnCl2 molten salt displayed an excellent catalytic activity for the hydrocracking of the heavy anthracene oil.